Packing machinery



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w a MOLINS PACKING MACHINERY Filed Feb. 5, 1927* Dec. 13, l 92 7.

Dec. 13, 1927. I 1,652,871 w. E. MOLINS PACKING MACHINERY Filed Feb. 5,1927 s Sheets-Sheet 2 Dec. 13, 1927.

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Patented Dec. 13, 19.27.

UNETED sr itsasu PACKING MACHINERY.

Application filed February 3, 1927, Seria1 No. 165,702, and. in GreatBritain February 3, 1926,

This invention is for improvements in or relating to packing machmeryand more particularly to packing machinery of the type wherem packetsare: automatically moved in succession for eirample,through a verticalstacker from which they have to be a device foruse on a packing machineof the type referred to which comprises means (for example a pusherpiece) operable automatically to remove packets in batches from thestacker so as to ly to opposite sides of the stacker and means operableautomatically to detect whether each batch comprises a predeterminednumber of packets.

Again the present invention consists of a device for use on a packingmachine of the type referred nation means operable automaticallyto receive packets in line and move the same through a vertical stacker insuperimposed relationship, and means (for example a pusher piece)operable automatically to arrange the packets in batches and move thesame in succession in a horizontal plane.

Further, the presentinvention consists of a device as set forth in thepreceding paragraph, wherein means are provided to detect automaticallywhether each batch comprises a predetermined number of packets. v Theinvention will be hereinafter more particularly described with referenceto the accompanying drawings, in which Fig. 1 illustrates in elevation adevice constructed according to the present invention.

Fig. 2 is a plan view of Fig. 1.

mond threaded screw, pusher piece and cam bar of the device illustratedin Fig. 1.

Fig. 4 is a side elevation of Fig. '3. Figs. 5, 6 and 7 are detailedviewsof the tracer which engages with the diamond threaded rod. I

Fig. 8 is a side elevation of a slipping clutch, mechanism and Fig.

deliver the batches alternate.

to which comprises in'combi Fig. 3 is an enlarged plan view of the dia 9is a detailed elevation of thecam Referring to the drawings, a packet ofcigarettes is enveloped, for example, in an outer covering of thin.transparentpaper, by ama-chine constructed according to Britishspecifications Nos. 165,891, 214,792 and 255,937, and the successivepackets so envel oped are automatically moved in line along a bed 1of'the wrapping machine into position above an upwardly movable platform2 which moves each successive packet into a vertical stacker 3. Thepackets of cigarettes are moved intermittently through the stack{ eruntil they extend one above theother beyondthe delivery end thereof.

Mounted on either side of the delivery end of the stacker 3 is aplatform a provided, at the end-adjacent to the delivery endof thestacker,.with a sloping portion 5, the 'pu'r-' pose of" which will behereinafter described. Arranged to move over the platforms 4 is a pusherpiece 6 which is carried'by a bracket 7 threaded upon a diamondthreadedvrod 8 upon which is mounted a pinion 9 drivenby a pinion 10secured to a continuously rotated shaft 11 through a slipping clutchmechanism. The pusher piece 6 is secured to a spin'd1e12 slidable in thebracket 7 the pusher' being guided" between guide rollers '13. V

The lower and of the spindle 12 carries a roller 14 which is adapted toride over a cam bar 15.

'Pivotallysecured to the cam. bar 15, is a link 16 which carries a dog17 arranged to be 7 moved into engagement with teeth 18 secured to therod 8, The dog '17 is noifmallyheld out of engagementwith the teeth 18by means of a spring 19.

dle 12, is shaped so that as thepusherpiece moves across the deliveryend of the stacker The cam bar 15 which supports the spin- 3, thespindle is 'free to move downwardly so I that the lower endof the pusherpiece moves in a direction corresponding to the sloping portions 5 ofthe platforms 4 andfis' thereafter free to move downwardly still furtherso as to permit a cam face 20 formed on the side face of the spindle 12to engage with a cam face 21 formed on the inner face of the link '16 torockthe' same about its pivot and thereby move the dog '17 against theinfluence'o'ff thespring19; into engagement with oneof the teeth 18, andarrest the movement of the diamond threaded rod 8.

If, however, a predetermined number of packets are located above thedeliveryend of h s k .3. he preset st v.

gage with a horizontal limb 22 of an adj ustable bracket 23 secured tothe pusher piece 6 and prevent the downward movement of the spindle 12and thereby enable the pusher piece 6 to move a predetermined number ofpackets to one side of the delivery end of the stacker. If the desirednumber of packets are not located above the delivery end of the stacker,the spindle 12 will be free to fall and stop the rotation of the diamondthreaded rod 8 in the manner hereinbefore described. The packets,however, continue to be delivered into the stacker 8 and as the packetsare delivered above the delivery end 4 of the stacker 3, the leadingpacket will e11- gage with horizontal limb 22 of the bracket 23 and-raise the spindle 12 until the cam disengages with the cam surface 21on the link 16, whereupon the dog 17 will be released, and the diamondthreaded ,ro'd ermitted to rotate and cause the pusher piece 6 to movethe desired number of packets to one side of the delivery end of thestacker.

The bracket 7 which carries the pusher piece 6 engages with the helicalgrooves on the rod 8 through the medium of a tracer 24 (Figs. 5, 6 and7) which, as the bracket is moved in one direction is maintained at adefinite inclination so as to engage with one helical groove formed onthe rod 8, and when the bracket reaches the end of its traverseth'etracer 24 engages with a surface 25 on the end of the rod 8which swingsthe tracer about its pivot, thereby enabling the same to engage with thesecond helical groove formed on the rod 8 and efiect the movement of thebracket in a reverse direction. r

It will be appreciated that if necessary, a slidable elementcorresponding in shape to the surface 25,"may be movedaxially along therod '8 so as to limit the traverse of the bracket 7 and thereby limitthe number of from the delivery end of the stacker. i

The batches of packets removed from the stacker, are arranged insuccession on the platforms 4 so that an oncoming batch of 'packetsmoves the leading batch through a flexible mouthpiece 26 into an outercarton which is inserted over the mouth 27 of the mouthpiece 26. Duetothe action of a batch of packets passing between the flexible blades27 of the mouthpiece 26, the blades are exa tended outwardly so as tobind against the innerwalls of a carton inserted thereon and I holdthe'carton firmly in position until; the required number of batches ofpackets have 7 been inserted into the carton whereupon the carton isremoved by the operator.

VVhenthe dog 17 arrests the movement of the rod 8, the pinion 9 ceasesto rotate and stops theflrotational movement of the pinion 1 0. Thepinion 1O isconnected to the shaft 11' by a yieldingly cbntrolled'link28 Which is adaptedto engage with a tooth 29 secured to the shaft 11 ofthe pinion 10. The link 28 is held in contact'with the tooth 29 by aspring 30 which is so designed that when the pinion 10 is arrested, thetooth 29 forces the link 28 upwardly against the influence of the spring30 and permits the pinion 10 to slip relatively to the shaft 11.

The helical grooves formed on the rod 8 are preferably designed in sucha manner that the speed of the pusher piece 6 is greater in that portionof its traverse which is located directly above the delivery end of thestacker, than it is over the platforms 4. In this manner time isallowed, whilst the pusher piece passes over the platforms 4 for thedesired number of packets to be moved above the delivery end of thestacker, whereupon the speed of the pusherpiece 1s of a batch of packetslocated beyond the dehveryend of the stacker so as to removeat intervalsa predetermined numberof packets therefrom. Further, automatic meanscould be provided to arrest the conveyor if the desired number ofpackets are not located in the path of a pusher piece or alternativelythe conveyor could be arranged to move the pusher pieces continuously orintermittently in one direction across the path of a batch of packetslocated beyond the delivery end of the stacker and automatic mean-sprovided to trip one or more pusher pieces out of the path of thepackets if the desired number of packets are not located in the path ofthe same Further, when the reciprocatedpusher piece hereinbeforedescribed is arranged above the delivery end of a verticalstacker, thesame may be arranged to move the packets in one direction only, forexample, the pusher piece may be constructed. so as tobe deflectedupwardly during its return. stroke so as to ride over the top surface ofthe uppermost packet.

TV hat 'I'claim as'my Invention and desire to secure by Letters Patentis 1. A device for use on a packing machine of the type wherein packetsare automaticallv moved -1I1 succession through a'vertical stacker whlohcomprises in combination means operable. automatically to remove thepackets in batches from the stacker and de liver the batc es alternatelyto opposite sides thereof, and means operable automatically to detectwhether each batch comp-rises a predetermined number of packets.

. 2. A device foruse on a'packing machine of the type wherein packetsare automatically moved in succession through a vertical stacker whichcomprises in combination means operable automatically to remove thepackets in batches from the stacker and deliver the batches alternatelyto opposite sides thereof, and means operable automatically to ensurethat each batch comprises a predetermined number of packets.

3. A device for use on a packing machine of the type wherein packets areautomatically moved in succession through a vertical stacker whichcomprises in combination means operable automatically to receive thepackets in line and move the same through a vertical stacker insuperimposed relationship, means operable automatically to arrange thepackets in batches'and move the same in succession in a horizontal planeand means operable automatically to ensure that each batch comprises apredetermined num ber of packets. Y I 4. A device for use on a packingmachine of the type wherein packets are automatically moved insuccession through a vertical stacker which comprises in combination apusher piece operable automatically to remove packets in batches fromthe stacker and deliver the same alternately to opposite sides thereof,driving mechanism for said pusher piece, means associated with thepusher piece operable automatically to detect whether each batchcomprises a predetermined number of packets and adapted to arrestautomatically the driving mechanism of said pusher piece until eachbatch comprises a predetermined number of packets.

5. A device for use on a' packing machine of the type wherein packetsare automatically moved in succession through a vertical stacker whichcomprises in combination means operable to receive the packets in lineand move the same through a vertical stacker in superimposedrelationship, a pusher piece operable automatically to arrange thepackets in batches and move the same in succession in a horizontalplane, driving mechanism for said pusher piece and means associated withthe pusher piece and operable automatically to arrest the drivirTgmechanism of the pusher piece until each batch comprises a predeterminednumber of packets. 1

6. A device for use on a packing machine of the type wherein packets areautomatically moved in succession through a vertical stacker whichcomprises a pusher piece, a

rotatable diamond threaded rod arrangedto reciprocate said pusher pieceacross the delivery endof the said stacker so as to deliver batchesofpackets alternately to opposite sides of the stacker and meansassociated with the pusher piece operable automatically to arrest therotation of said rod until each batch comprises a predetermined numberof packets. v I

7. A device for use on a packing machine of the type wherein packets areautomatically moved in succession through a vertical stacker whichcomprises in combination a pusher piece arranged to be reciprocatedacross the delivery end ofa stacker by a diamond threaded rod having thepitch of the thread increased at the mid-length thereof and adapted todeliver batches alternate ly to opposite sides of the stacker'and meansassociated with the pusher piece. operable automatically to arrest thedriving mechanism thereof until each batch comprises a predeterminednumber of packets.

8. A device for use on a packing machine of the type referred "to and asclaimed inclaim 4, wherein the pusher piece is arranged to bedisplaceable in a direction transverse to the path of the same acrossthe delivery end of the stacker, so as to stop antomatically the drivingmechanism of the.

pusher piece.

,9. A device for use on a packing machine of the type referred to andas'claimed in claim l, wherein the pusher piece is a1 ranged to bedisplaceable in a direction transverse to the path of the same acrossthe delivery end of the stacker, so as to stop automatically the drivingmechanism of the pusher piece, and means operatively connected to thepusher piece and arranged to engage With the leading packet in thestacker so as to restrict the displacement of the pusher piece in adirection transverse to the path of the same. i

' 10. A device for use on a packing machine of the type referred to,which comprises a pusher piece operable automatically to remove packetsin batches from a stacker and deliver the batches alternately toopposite sides of the stacker, a drivingmechanism for said pusher piece,said pusher piece being yieldingly mounted, on said driving mechanismsoas to be displaceable in a direction transverse to the path of thepusher piece.

In testimony whereof I hereunto afiix my signature.

WALTER EVERETT MOLINS.

